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Meat is the most valuable livestock product since it is one of the main sources of protein for human consumption. Meat quality can be evaluated according to the following parameters: pH, amount of lactic acid, volatile fatty acids, bounded water, solubility of proteins, color, and tenderness. The meat composition and physical properties of muscles have been characterized for ensuring improved eating quality. Thus, the purpose of this paper was to review the major chemical compositional and physicochemical properties of meat and, at the same time, its quality attributes and factors that affect quality of meat. A number of structural features of meat as connective tissue, muscle fibers, and tendon that attaches the muscle to the bone are visible in joint meat examined through naked eyes. Water is quantitatively the most important component of meat comprising up to 75% of weight. Meat is also composed of amino acids, fatty acids, vitamins, minerals, and other important ingredients. Quality factors perceived by consumers are related to sensory attributes (e.g., color, tenderness, and flavor), nutritional properties (e.g., calories, vitamins’ content, and fatty acids’ profile), and appearance (e.g., exudation, marbling, and visible amount of fat). However, fresh meat quality can be defined instrumentally including composition, nutrients, color, water-holding capacity, tenderness, functionality, flavors, spoilage, and contamination. Visual inspection based on sensory quality attributes and different chemical methods are used to analyze meat quality. Other methods such as computer vision and imaging spectroscopy, gas chromatographic analysis, near-infrared technology, dual-energy X-ray absorptiometry, and computerized tomography scanning are also used in the meat industry. So, the aim of the present review is to review quality characteristics of cattle meat and its composition constituents.

Bone processing is an urgent task of rational use of meat industry waste. Disposal of cattle bones can be carried out by different methods. Various methods are used for processing bone raw materials, such as mechanical processing, chemical hydrolysis, ultrasonic processing, etc. Processed meat and bone raw materials in meat and bone paste are chemically exposed to ascorbic acid (0.05 M, 1 h, 25 ° C) and pepsin (pH 2.0, t=10...40 ° C, τ=1...8 h). This allows you to reduce the mass of bone particles in meat and bone paste by 70%. Meat and bone paste subjected to enzyme processing can be used in the technology of meat products.

PurposeThe study proposes Material Flow Analysis (MFA) methodology as a tool to measure and qualify food waste in the Italian beef supply chain in each stage of the food supply chain, from farm to fork. In particular, the authors attempt to: (1) measure resources consumption and waste generation toward companies' and policymakers' sustainable evaluations; (2) enhance consumers' education in the field of agri-food resilience and sustainability.Design/methodology/approachMFA is applied to the entire Italian sector of beef consumed as packaged fresh product in 2020, during the Covid-19 pandemic. The analysis regards bovine, which represent roughly one-third of the national meat flow. To collect data, bottom-up and top-down mixed approach is applied. Subsequently, MFA results are used to calculate the wastage-related losses in terms of embedded natural resources (e.g. water, energy).FindingsIn 2020, it results that the Italian meat industry slaughtered more than 1.15 Mt of bovine to produce approximately 0.29 Mt of fresh meat, 0.69 Mt of by-products and over 0.015 Mt of food waste at households, while 0.15 Mt of beef meat is destined to catering services and food industry (out-of-boundaries). In terms of hidden natural resources, it emerged that, on average, more than 94bn m3 of water, approximately 101,000 TJ of energy and over 11,500 t of PET and PE trays are required to sustain the entire beef system.Originality/valueThis research is one of the few studies proposing MFA methodology as a tool to measure food waste and hidden associated flows in the agri-food sector. This analysis shows its utility in terms of natural resources (water, energy, materials) and waste quality/quantity evaluation, hidden flows accounting and development of new educational strategies toward food waste minimization and sustainability at household consumption.

White oyster mushrooms (Pleurotus ostreatus) can be used as fillers sausages mix because the physical properties of chewy like meat and high fiber content. The main raw material of sausages is meat, so that rejected layer chicken meat can be used even though it has low quality of the meat and less liked by the consumer, however, as a food ingredient it still has potential to improve the quality. Therefore, to improve the quality and preferences of the consumer, it is necessary to innovate processed into sausages with the addition of a fiber source, namely white oyster mushroom flour. This study aims to examine the use of white oyster mushroom as a source of dietary fiber in sausage processing. The research materials used were white oyster mushrooms, rejected laying hens and spices. The experiment was designed using a completely randomized design (CRD) with 4 treatments and 3 replications, which included: without the addition of white oyster mushroom flour P0 (0%), the addition of oyster mushroom flour at the level of P1 (5%), P2 (10%), P3 ( 15%). Data were analyzed based on analysis of variance using Statistical Analysis System (SAS–Software). The results showed that the level of white oyster mushroom flour increased the organoleptic value of color, aroma and texture significantly (P

Aims To develop an oxygen sensor-based method for testing total aerobic viable counts (TVC) in raw meat samples and cattle carcass swabs, which is rapid, simple, affordable, provides good sensitivity and analytical performance and allows on-site use. Methods and Results The test uses the same sample preparation procedure as the established plate counting TVC method for meat samples and carcasses, ISO4833-1:2013. After this liquid samples are transferred into standard 25-ml vials with built-in phosphorescent O-2 sensors and incubated on a block heater with hourly readings of sensor signals with a handheld reader, to determine signal threshold time (TT, hours) for each sample. The method is demonstrated with the quantification of TVC in industrial cuts of raw beef meat (CFU per g) and carcass swabs (CFU per cm(2)). Calibration curves were generated, which give the following analytical equations for calculating the TVC load in unknown samples from measured TT values: TVC [Log(CFU per cm(2))] = 7.83-0.73*TT(h) and TVC [Log(CFU per g)] = 8.74-0.70*TT(h) for the carcass swabs and meat samples respectively. The new tests show good correlation with the ISO methods, with correlation coefficients 0.85 and 0.83 respectively. The testing requires no dilutions, covers the ranges 2-7 Log(CFU per g) for the meat samples and 1-7 Log(CFU per cm(2)) for carcass swabs, and has time to result 1-10 h with faster detection of more contaminated samples. Conclusions The sensor-based testing demonstrates simplicity, high speed, sample throughput and automation. It can provide a straightforward replacement for the conventional TVC tests, which are time consuming, laborious and have time to result of 48-72 h. Significance and Impact of the Study The method(s) can be adopted by the meat industry and research labs, and used to improve microbial quality and safety of meat products and processes.

Meat byproduct is rich source protein for hydrolysis. Pork liver is low value byproduct obtained from meat industry. Therefore, utilization of low value slaughterhouse byproduct enhances the income of meat industry, reduces the cost of disposal and environmental pollution. Physico-chemicals, colour profiles, lipid oxidation, the antioxidant and antimicrobial potential of liver hydrolysate (at three levels T1 = 0.03, T2 = 0.06 and T3 = 0.09% w/w meat emulsion) were comparatively investigated with control (without hydrolysate C = 0) and positive control (PC (BHT = 0.02% w/w meat emulsion)) in meat emulsion. Samples were stored at 4 ± 1 °C under aerobic packaging condition and were drawn at 2 days intervals for analysis. Results revealed that pH values increased significantly (P

The current state, prospects for using and priorities in studying multifunctional protein lactoferrin (LF) in the food industry are discussed. Over the last decades, the studies of iron-binding, antibacterial, antiviral and antiparasitic properties of this representative of transferrins have determined quite a wide sphere of its use. The data on the lactoferrin composition, structure and activity are presented. The authors describe the modern methods for lactoferrin extraction and production from dairy raw materials both in the domestic and foreign productions using chromatographic methods for extraction and membrane methods for production. The practical experience in its application for food production, in particular, for meat and fermented dairy products, child and sports nutrition is discussed. An effect of technological process parameters in food production on the LF activity is highlighted. The study analyses an influence of new processing technologies such as high pressure or pulsed electric field in combination with classic methods for thermal processing and drying on the structure and activity of lactoferrin in food. The reviewed studies show that the use of lactoferrin in the meat industry, especially, in finished meat products, has limitations. The data presented in the review suggest a need for searching ways of lactoferrin introduction into meat systems to obtain functional products. One of the top-priority method for LF incorporation into meat products is LF encapsulation as one of the production stages.

Artificial preservatives have long been used by the meat industry to control chemical, microbial, and enzymatic degradation activities; and to enhance the shelf life, safety, and quality of meat pr...

The results of microbiological studies of air samples of refrigerating chambers of meat processing enterprises are presented. The quantitative composition of the air microbiota of the chambers of the refrigerating shop was studied. It has been established that the technological regimes for cooling meat in cooled chambers (t = +4 °C) and deep freezing chambers (t = -18 °C and -22 °C) have no bacteriostatic effect on the life activity of mold fungi. The developed disinfecting preparation (hydrogen peroxide (8.0 - 10%), acetic acid (10%), peracetic acid (5.0 - 7.0%), stabilizing additives, water) ensures the destruction of sanitary-indicative microorganisms in cold rooms meat processing plants when applied at a concentration of 0.05% - 60 minutes, 0.1% - 30 minutes, 0.15% - 10 minutes and does not have a toxic effect on meat raw materials that are stored in chambers of the refrigeration shop after disinfection.

Taking into account the appearance of "new pathogens", persistent and uncultivated microorganisms, increasing the resistance of modern strains of microorganisms to disinfectants, increasing their antibiotic resistance and ability to biofilm formation, there is a need to study the microbial community of refrigerating chambers at meat processing enterprises in modern conditions, which was the aim of this work. The study of sanitary condition of the refrigeration equipment of a meat processing plants of the Almaty region of Kazakhstan was carried out by classical methods of microbiology and metagenomic analysis. Methods of classical microbiology allowed to identify the following microflora of refrigerating chambers of meat processing enterprises: bacteria Bacillus subtilis, Bacillus mesentericus, Pseudomonas sp., Sarcina flava, yeast Rhodotorula sp., mycelial fungi Penicillium sp., Alternaria sp., Mucor sp., Aspergillus sp., Chrososporum sp., Tamnidium sp. Metagenomic analysis showed that the bacterial microflora of refrigerating chambers is mainly represented by three phyla: Firmicutes (95.33%-97.94%), Proteobacteria (1.39%-1.02%), Actinobacteria (1.11%-0.63%) and their ratio depends on the temperature of the refrigerators well as on the observance of hygiene standards by personnel. The research results can serve as the basis for recommendations for improving the sanitary condition and safety at meat processing plants.

Increasing meat demand in terms of both quality and quantity in conjunction with feeding a growing population has resulted in regulatory agencies imposing stringent guidelines on meat quality and safety. Objective and accurate rapid non-destructive detection methods and evaluation techniques based on artificial intelligence have become the research hotspot in recent years and have been widely applied in the meat industry. Therefore, this review surveyed the key technologies of non-destructive detection for meat quality, mainly including ultrasonic technology, machine (computer) vision technology, near-infrared spectroscopy technology, hyperspectral technology, Raman spectra technology, and electronic nose/tongue. The technical characteristics and evaluation methods were compared and analyzed; the practical applications of non-destructive detection technologies in meat quality assessment were explored; and the current challenges and future research directions were discussed. The literature presented in this review clearly demonstrate that previous research on non-destructive technologies are of great significance to ensure consumers’ urgent demand for high-quality meat by promoting automatic, real-time inspection and quality control in meat production. In the near future, with ever-growing application requirements and research developments, it is a trend to integrate such systems to provide effective solutions for various grain quality evaluation applications.

Background Carcass evaluation is a key process to ascertain the value and the quality characteristics of the animal at slaughter. In addition to being the base for monetary transactions between livestock producers and meat processors, in some countries, this evaluation also helps to determine the market allocation of cuts. Recent advances in non-invasive techniques are being tested for their potential to improve classification and grading systems in the meat industry. Scope and approach In this review, global grading and classification practices for pig, sheep and beef carcasses are discussed along with the latest technological developments in objective carcass measurement. We discuss a number of studies predicting marketable attributes such as yield (lean and saleable meat yield), eating quality attributes (inter- and intra-muscular fat, meat and fat colour) and carcass dimensions (skeletal structure, ribeye area). Technologies based on x-ray, nuclear magnetic resonance, video image analysis, ultrasound, bioelectric impedance and spectroscopy are discussed, along with recent developments and their possible future adoption. Key findings and conclusions Dual-energy x-ray absorptiometry and magnetic induction technologies have been commercialised for the sheep and pig industries, respectively. X-ray technologies and updates in video image analysis could go beyond grading to improve yield and cut dimension predictions. Some technologies could improve process efficiencies through cut sorting and enabling robotic cutting, while also enabling improved value-based payment systems. However, there are challenges associated with their implementation in meat processing plants and further research and development is required in some areas.

Nitrate and nitrite salts are important food additives that improve quality, safety and shelf life of meat products. Although their use is regulated, the concern about the use of E-number additives have been pushing researchers and professionals of the meat industry for alternative strategies to ‘clean’ the label of meat products produced with nitrate and/or nitrite salts. Natural extracts from cruciferous vegetables is an interesting strategy to overcome this challenge due to their high nitrate content. This review aims to discuss the main sources of nitrates among cruciferous vegetables and also their technological as natural additives in the production of cured meat products.

Health concerns have motivated salt reduction on diverse foods. Salt in processed meat usually reach high levels, and its reduction is not an easy task, due to its preservative action and expected sensory characteristics in them. Meat industry is looking for alternative solutions for both salt reduction and replacement. The curing time needed to reach the required salt content in meat products can be reduced by the application of ultrasound. Ultrasound technology has been applied for brining, marinating, tumbling, and cooking, with promising results as a useful strategy to reduce the salt content in meat products, such as dry-cured ham, bacon and chicken breast. However, ultrasound parameters should be optimized for each meat product, because structure and composition are diverse among products and the US effects be different. The purpose of this review is to highlight and summarize recent studies on ultrasound application to obtain low salt meat products.

Background Livers, by-products from animal processing, serve as an excellent source of high-quality protein and bioactive enzymes. The need for animal protein resources encourages the search for and use of unconventional supplies. However, animal livers are commonly sold unprocessed at a low price since their unique properties and high-value utilization have not been fully explored. Fully use of animal livers provides an opportunity to utilize existing resources of food protein to the utmost and reduce the environmental pollution from the meat production when these raw materials not properly processed. Scope and application Efficient and environmentally-friendly extraction of liver protein and its hydrolysates, biological activities and potential applications are reviewed in this contribution. In addition, value-added utilization of liver protein and its hydrolysates are discussed. Furthermore, certain liver proteins, bioactive enzymatic hydrolysates and natural enzymes, as well as their potential utilization in agriculture, food, and medicine are evaluated. Key finding and conclusions: Innovative technologies guarantee effective conversion of animal processing by-products into biologically active protein hydrolysates and procurement of high activity proteases. Animal liver protein and its hydrolysates have attracted much interest due to their broad applications in food, healthcare, animal feed and veterinary products. However, there is a need for intensive research on biological activity of liver protein and its hydrolysates in organism as well as on the regulation in animal by-products. Therefore, liver protein and its hydrolysates produced at industrial level would offer a value-added product for meat processing industry, and helps achieving resource sustainability.

The properties associated with NaCl make it a widely used preservative in the meat industry. However, the growing concern of consumers for their health, and the recommendations of international organizations, force the reformulation of meat products, reducing the salt contents and therefore, giving rise to healthier products. This leads to the search for alternatives that allow to reduce salt content in the product without modifying its technological and sensory properties. In this regard, the replacement by metallic salts is the most common strategy. Recently, its combination with the application of emerging technologies is being evaluated to obtain low-sodium meat products of high quality.

Context Chemical lean (CL) is an important metric used by the Australian meat industry to describe fat content of meat product. It is a minimum meat specification included in contracts between Australian vendors of bulk packed boneless manufacturing meat and overseas or domestic buyers and can be regarded as the complement of chemically determined fat in meat (% fat, CL = 100-% fat). The microwave moisture method is commonly used for measuring CL content of meat in Australian abattoirs, relying on a relationship between CL and moisture content of boneless meat. It is regarded as a quick and easy method to use. More recently, newer methods for moisture analysis have become available which may also be suitable for CL determination, including commercial halogen moisture analysers (HMAs). HMAs use a halogen lamp as a source of infrared radiation that is absorbed by a sample, which then results in moisture loss. Aims This study aimed to compare the use of HMAs for CL determination of beef and lamb to that obtained from Soxhlet extraction technique, which is the AOAC Final Action Method for determining fat in meat and accepted as the reference method for fat determination. Additionally, the study sought to validate the use of HMAs as a method for CL determination in the Australian meat industry. Methods HMAs were used to determine the moisture content of six beef and one lamb samples, which were used to calculate the CL content. The fat content of the samples was also determined using Soxhlet fat extraction. Passing-Bablok regression and Bland-Altman plot analysis were used to identify any differences and bias between the methods, respectively. Key results Passing-Bablok regression showed that there was no difference between methods, while Bland-Altman plot analysis indicated no bias was evident between the methods. While some differences were apparent between approaches either due to using moisture as a proxy for fat/CL compared with continual solvent extraction or sample heterogeneity, sufficient agreement existed between results to lie within an acceptance criterion of 1.2 CL units. Conclusion The use of HMAs was substantiated as a method for CL determination in the Australian meat industry and has been accredited by AUS-MEAT Ltd as a method for boneless beef and lamb. Implications HMAs can be used in the Australian meat industry for CL determination and represent a relatively simpler and easier approach for this important industry metric.

Background Meat has been an important protein source for human nu-trition for thousands of years and will continue to be. According to the Organisation for Economic Cooperation and Development and Food and Agriculture Organisation's (OECD-FAO)outlook report 2018–2027, the meat consumption increased around 20% in the last ten years, and it is expected to grow another 15% for the next ten years. The harsh working environ-ment in abattoirs and meat factories, such as cold and wet operating rooms and long difficult handling of heavy loads, contributing to the shortage of a skilled labour forces. This, coupled with a considerable increase in the meat consumption, paved the way for novel approaches in the meat industry to ad-dress this challenge, with robotisation and automation of the meat factories being a necessary change. Scope and approach In this work, we review the current state of robotisa-tion for the meat industry and its adaptability to a new production concept called the meat factory cell (MFC). The reviewed systems are: (a) Frontmatec AiRA Robots for pork slaugh-terlines (b) Mayekawa Hamdas-RX for deboning pork ham; (c) SCOTT Au- tomated Boning Room for lamb slaughterlines; (d) SRDViand (Syst`emes Robotis´es de D´ecoupe de Viande) Z-cut robotic system to do the separation of the hindquarter and the forequarter; (e) SRDViand ham deboning system; (f) SRDViand ECHORD-DEXDEB, a robotic butcher left hand; (g) SINTEF GRIBBOT, a chicken fillet harvesting robot. Key findings and conclusions The slaughterhouse processes can be highly automated, with products available at the market, while the meat processing plants are mainly manual; deboning and fine cuts require a higher level of dexterity comparing to primary slaughter cuts, this leads to more researches of intelligent systems. In the other hand, a new way to process the slaughter products can lead to innovation and smarter systems on slaughterhouses, with the benefits to open new opportunities for smaller producers.

Microalgae have been recognized as natural, sustainable, and economically feasible resources of non-conventional feed ingredients able to promote benefits to animal growth and improvements in the meat quality. At the same time, microalgae biomass or their isolated compounds can be directly incorporated as techno-functional ingredients in a range of meat-processed products. This review provides the latest updates on the use of microalgae biomass as a source of nutrients in animal feed describing the main effects on the nutritional, technological, and sensory quality of the meat. Besides, relevant aspects of the direct incorporation of microalgae biomass or isolated compounds in meat-derived products are discussed, concerning changes in the nutritional composition, sensory characteristics, and technological properties. Finally, challenges and perspectives are presented.

Article Details: Received: 2020-11-03 | Accepted: 2020-11-27 | Available online: 2021-01-31 https://doi.org/10.15414/afz.2021.24.mi-prap.118-121 The aim of the present study was to evaluate the influence of sex on selected fattening, carcass and qualitative veal parameters of Slovak Simmental breed. The comparison was carried out on the 8 male and the 8 female animals. The animals were reared under the same housing conditions and were fed with grass hay (ad libitum) , feed straw and calves feed concentrate, and had a free access to the fresh water. The fattening period started from about 70 days of age to required final weight. Length of the fattening period was 180 days. The slaughter and carcass composition, carcass yield, qualitative, physical and technological characteristics of Longissimus thoracis et lumborum muscle were studied. We found a significantly higher proportion of bones and a significantly higher proportion of separable fat in the carcass half in males. Higher proportion of meat were found in females. At the heifers was found, although not significantly, a higher proportion of internal fat (rumen, intestinal, kidney, pelvic). Significantly different pH measured 24 hours post mortem was found between males and females (P

15 pags, 5 figs, 3 tabs. -- Supplementary data to this article can be found online at https://doi.org/10.1016/j.csbj.2021.11.027., Many microorganisms feed on the tissue and recalcitrant bone materials from dead animals, however little is known about the collaborative effort and characteristics of their enzymes. In this study, microbial metagenomes from symbionts of the marine bone-dwelling worm Osedax mucofloris, and from microbial biofilms growing on experimentally deployed bone surfaces were screened for specialized bone-degrading enzymes. A total of 2,043 taxonomically (closest match within 40 phyla) and functionally (1 proteolytic and 9 glycohydrolytic activities) diverse and non-redundant sequences (median pairwise identity of 23.6%) encoding such enzymes were retrieved. The taxonomic assignation and the median identity of 72.2% to homologous proteins reflect microbial and functional novelty associated to a specialized bone-degrading marine community. Binning suggests that only one generalist hosting all ten targeted activities, working in synergy with multiple specialists hosting a few or individual activities. Collagenases were the most abundant enzyme class, representing 48% of the total hits. A total of 47 diverse enzymes, representing 8 hydrolytic activities, were produced in Escherichia coli, whereof 13 were soluble and active. The biochemical analyses revealed a wide range of optimal pH (4.0-7.0), optimal temperature (5-65 °C), and of accepted substrates, specific to each microbial enzyme. This versatility may contribute to a high environmental plasticity of bone-degrading marine consortia that can be confronted to diverse habitats and bone materials. Through bone-meal degradation tests, we further demonstrated that some of these enzymes, particularly those from Flavobacteriaceae and Marinifilaceae, may be an asset for development of new value chains in the biorefinery industry., We acknowledge financial support of ERA-NET Marine Biotechnology (GA no.: 604814) funded under the FP7 ERA-NET scheme and nationally managed from the German Federal Ministry of Education and Research and Norwegian Research Council, the grants PCIN-2017-078 (within the Marine Biotechnology ERA-NET), BIO2017-85522-R, PID2020-112758RB-I00 and PDC2021-121534-I00 from the Ministerio de Economía, Industria y Competitividad, Ministerio de Ciencia e Innovación, Agencia Estatal de Investigación (AEI) (Digital Object Identifier 10.13039/501100011033), Fondo Europeo de Desarrollo Regional (FEDER) and the European Union (“NextGenerationEU/PRTR”), and the grant 2020AEP061 from the Agencia Estatal CSIC. F.J.P and J.S-A. acknowledges grants PID2019-105838RB-C31 and PID2019-105838RB-C33 from the Ministerio de Ciencia e Innovación, Agencia Estatal de Investigación (AEI), Fondo Europeo de Desarrollo Regional (FEDER) and the European Union (EU). Additional funding was received from the Norwegian Biodiversity Information Centre (PA 809116 knr. 47-14) and NORCE Norwegian Research Centre. J.W. acknowledge the use of de.NBI cloud and the support by the High Performance and Cloud Computing Group at the Zentrum für Datenverarbeitung of the Eberhard Karls University of Tübingen and the Federal Ministry of Education and Research (BMBF) through grant no 031 A535A. K.S.M. is supported by intramural funds of the US Department of Health and Human Services (to the National Library of Medicine).

To stop hunger, reducing food losses is a potential movement towards saving food. A large portion of these losses could be avoided and reduced through the improved food chain in many countries. Raising awareness on how and where food losses occur will help recovering foods such as meat by identifying solutions and convincing people to implement those solutions. This, in turn, will lead to private and public efforts to recover meat that might be otherwise wasted. After highlighting the importance of food saving benefits and relevant statistics, this paper explains the possible ways to reduce meat loss and waste in abattoirs and presents a framework for prevention according to the estimates of meat losses in Iran meat supply. The current article answers the questions of where do we have the meat loss in Iran and what approaches are most successful in reducing losses in the meat industry. The national average loss and waste in meat production are about 300,000 metric tonnes (about 15%). Many segments and players are involved with this huge amount of losses in the meat value chain, a large portion of these losses could be avoided and reduced by about 25% through using by-products with the mechanization of design and manufacturing. The production amount of mechanically deboned meat (MDM) is 105,091,000 kg, concluding the major waste (88.33%) of total poultry losses. Ensuring appropriate actions by exploiting the full potential of engaged Iranian associations and institutes is considered to reduce the losses.

Thermal treatment is a widely applied food processing technology in the meat industry due to its convenience. However, the interpretation of the changes in the bacterial community and quality properties in the thermal processed meat products have not been well established. Therefore, the effects of thermal treatment on the quality characteristics and bacterial communities in meatballs during storage at 4°C were investigated, which will provide a more comprehensive understanding of the influence of thermal treatment on the meat quality. Thermal treatment (121°C, 15 min) decreased the initial total viable bacterial counts by 2.1 log CFU/g and the diversity of the initial bacterial communities in meatballs. Compared with the thermal treatment group, a significantly more rapidly increasing trend of total volatile basic nitrogen and a decreasing trend of pH were observed in the control group. At the end of storage, the bacterial community was dominated by Streptococcus, Acinetobacter and Pseudomonas in the thermal treatment meatballs, whereas Pseudomonas, Pantoea, and Serratia. dominated the bacterial community of the control group. Besides, the predicted metabolic pathways revealed high levels of carbohydrate, amino acid, and lipid metabolism in the control group. This finding could contribute to a deep understanding of the influence of thermal treatment on the meat quality. Moreover, these results could provide a theoretical foundation for the development of alternative and novel nonthermal processing technologies for use in the meat industry., The findings of this study demonstrated that thermal treatment (121°C, 15 min) could significantly decrease bacterial community diversity and the growth of potential spoilage bacteria in meatballs. In particular, thermal treatment could largely decrease the relative abundance of bacterial metabolic pathways in meatballs, such as carbohydrate, amino acid, and lipid metabolism to maintain the freshness of meatballs during storage.

Salmonella enterica is among the most important foodborne pathogens. In Ecuador, there is limited information about non-typhoidal S. enterica occurrence in raw meats, its serotype distribution, and antimicrobial resistance. In this study, we addressed this issue in 1095 retail fresh meats (chicken, pork, veal, lamb, beef, and turkey) in Quito by performing a traditional culture methodology and molecular detection. We found that S. enterica was present in 38.1% of the samples, and Salmonella Infantis was the most common serotype showing a high antibiotic resistance and a wide host range. Some host-adapted serotypes were found in uncommon sources of meat, suggesting cross-contamination and the need to implement good manufacturing practices in meat processing. High levels of multidrug resistance were found in all serotypes. There is an urgent need to identify Salmonella serotypes in food to compare with clinical data and to carry out epidemiological studies to control and prevent outbreaks and infections.

PurposeThis research seeks to develop a better understanding of internationalization patterns of agrifood firms and explains why different paths are adopted. Further, a conceptual framework to support public and private decision-making is proposed.Design/methodology/approachAn exploratory qualitative research framework was developed featuring case studies about three highly internationalized Brazilian meat processing firms. Top managers were interviewed, and documents were collected to support the intraand crosscase analyses.FindingsResults suggest that meat processing firms tend to adopt a dual internationalization pattern. Distribution-oriented foreign direct investment (FDI) is normally established gradually, whilst horizontal FDI – the establishment of foreign production facility – tends to be conducted through a fast-paced expansion mode. Interestingly, it was found that food safety issues play a central role in internationalization decisions.Originality/valueAn extension to the Uppsala model was provided by considering agrifood characteristics in the analysis. The results have broad appeal to managers and policymakers. Agribusiness managers could use the theoretical and empirical evidence to support their internationalization decisions. Policymakers can also use this research to gain a better understanding of how agrifood firms expand internationally to either attract or foster FDI.

Texture and color are some of the most important qualitative features of meat and its products. They affect the acceptance among consumers, and they are very important parameters of the culinary and meat industry's usefulness of meat. However, cooked meat is usually not enough soft and juicy to satisfy consumers. Researches try to find methods to improve the texture of the meat products. One method is acidic marinating meat. But there are no reports on the use of fermented dairy products (FDP) for meat marinating. The acids contained in FDP can be improved tenderness, juiciness and color of meat products. Also, the use of lower heat treatment temperature for cooking meat positively affects its sensory properties and texture. The aim of the study was the impact of meat marinating in FDP (kefir, yoghurt and buttermilk) marinating time (3, 6, 9 and 12 days) and sous-vide (SV) cooking temperature (vacuum, 60 or 80 °C, 6 h), on texture and color parameters of pork steaks. Marinating the meat increased the tenderness (lowering the hardness and chewiness) of steaks. The best results were obtained by marinating steaks in buttermilk or yoghurt for 6 or 9 days and SV cooking at 60 °C for 6 h. There was no influence of the marinade type and SV cooking temperature on L* and b* color parameters. Redness increased with marinating time and cooking temperature. Kefir and buttermilk did not affect the a* value of SV cooked steaks; however, marinating in yoghurt reduced that value.

The rigidity of meat systems is due to many factors, including different ratio of fibrillar and globular proteins, as well as their structural features. The need to soften meat systems with a high content of various types of connective tissue, as well as the possibility of correcting the processes associated with abnormal autolysis during the maturation of meat raw materials and the formation of a dry rigid structure, are relevant today. The review presents the use of peptidases of plant, animal and bacterial origin, including their separate class — collagenases, which are used for tenderizing meat. Also, recombinant targeting proteases that have high potential are presented; so, there is a need to develop effective applications for their use.

BACKGROUND The meat industry is determined to find biodegradable packaging with properties similar to plastic. Furcellaran (FUR) and whey protein isolate (WPI) were used as a film matrix in which Borago officinalis extract (BOE) was incorporated as an antioxidant compound. The film's mechanical properties, water behavior, surface color, and antioxidant power were analyzed.Smoked hams were manufactured using two different types of film application: cured meat covered with film, smoked and cooked or hamsafter smoking, cooking and cooling. Smoked, vacuum packed ham was used as a control sample. The products were stored at 4 °C for 21 days and analyzed every 7 days. RESULTS The elongation at break (EAB) and tensile strength (TS) of FUR/WPI films without the extract were 6.30% and 20.59 MPa, respectively, and after incorporating BOE, the EAB and TS were 24.30% and 15.33 MPa, respectively. The films with BOE were darker and had greater antioxidant capacity. The water content and activity in the products with films decreased along with storage time while the control remained stable. The results of microbiological, oxidation product accumulation, and sensory analysis were comparable in all the products. CONCLUSIONS The smoking time can be reduced due to the dark color of the hams covered with BOE film. The barrier properties of those films should be increased. Other parameters were comparable to plastic packaging. The films therefore have the potential to be used instead of plastic packaging in the meat industry. © 2020 Society of Chemical Industry.

Currently, animal proteins have a special role in the meat processing industry for meat products. A promising source of additional food protein production is natural collagen-containing raw materials, which can be used as part of protein-fat emulsions. The paper presents the results of research on nutritional and biological value of meat paste using new types of emulsions from collagen-containing raw materials, which have undergone technological treatment with bacteria p. Lactobacillus. To compare the data obtained, the studied samples of paste were compared with paste produces using emulsions from collagen-containing raw materials with no treatment, as well as subjected to hydrolysis. The results of determining indicators characterizing the nutritional and biological value of the developed paste are presented: content of protein, fat, nonessential and essential acids, polyunsaturated fatty acids and minerals. Development of a new method for preparing collagen-containing raw materials to be used in meat products will allow excluding vegetable protein from composition, as well as improving nutritional and biological value of the product. Collagen-containing raw materials used in meat paste will contribute to increase in use of biologically valuable secondary raw materials in meat-processing industry, as well as to expand of the range of high-quality food products of high nutritional and biological value for all age groups of population.

Imaging technique or computer vision (CV) technology has received huge attention as a rapid and non-destructive technique throughout the world for measuring quality attributes of agricultural products including meat and meat products. This study was conducted to test the ability of CV technology to predict the quality attributes of beef. Images were captured from longissimus dorsi muscle in beef at 24 h post-mortem. Traits evaluated were color value (L*, a*, b*), pH, drip loss, cooking loss, dry matter, moisture, crude protein, fat, ash, thiobarbituric acid reactive substance (TBARS), peroxide value (POV), free fatty acid (FFA), total coliform count (TCC), total viable count (TVC) and total yeast-mould count (TYMC). Images were analyzed using the Matlab software (R2015a). Different reference values were determined by physicochemical, proximate, biochemical and microbiological test. All determination were done in triplicate and the mean value was reported. Data analysis was carried out using the programme Statgraphics Centurion XVI. Calibration and validation model were fitted using the software Unscrambler X version 9.7. A higher correlation found in a* (r=0.65) and moisture (r=0.56) with ‘a*’ value obtained from image analysis and the highest calibration and prediction accuracy was found in lightness (r2c=0.73, r2p=0.69) in beef. Results of this work show that CV technology may be a useful tool for predicting meat quality traits in the laboratory and meat processing industries.

Background Meat quality is a prerequisite to the consumer's acceptability and industrial profitability. Post-translational modifications, changes in myofibrillar protein degradation and myoglobin oxidation have a great impact on meat quality during post-mortem aging of muscle. Applying proteomics to search for protein biomarkers to accurately assess meat quality is a new strategy to ensure high-quality meat. Scope and approach The current progress of using proteomics to identify potential protein biomarkers of meat quality traits during post-mortem aging of muscles has been reviewed in this paper. The advantages and disadvantages of different methods of protein separation, identification and quantitative analysis are summarized. Some potential protein biomarkers of meat quality traits belonging to different biological pathways involved in muscle contraction, metabolism, heat stress, oxidation, proteolysis and apoptosis are debated. Recently, biomarkers have been used to characterize meat tenderness, color and water-holding capacity to better understand the biological processes and pathways occurring in post-mortem muscles, and their detailed molecular mechanisms are discussed in this review. Key finding and conclusion Post-mortem aging of muscle is a complex process that involves physical and biochemical changes at the cellular level. Clarifying the changes and mechanisms of muscle-to-meat conversion is of great significance in identifying protein markers for assessing meat quality. Previous studies of the biomarkers linked to meat tenderness, color and water-holding capacity are summarized. We found that some great challenges still exist in characterizing and predicting the accuracy, stability and industrial application of meat quality biomarkers. Based on these studies, future research about biomarkers of meat quality traits are proposed to tackle these challenges and to assess the meat quality more accurately. Therefore, applying proteomics as an emerging technology can be helpful to ensure high-quality meat and provide economic benefits for the meat industry.

The addition or exchange of cheaper fish species instead of more expensive fish species is a known form of fraud in the food industry. This can take place accidentally due to the lack of expertise or act as a fraud. The interest in detecting animal species in meat products is based on religious demands (halal and kosher) as well as on product adulterations. Authentication of fish and meat products is critical in the food industry. Meat and fish adulteration, mainly for economic pursuit, is widespread and leads to serious public health risks, religious violations, and moral loss. Economically motivated adulteration of food is estimated to create damage of around € 8 to 12 billion per year. Rapid, effective, accurate, and reliable detection technologies are keys to effectively supervising meat and fish adulteration. Various analytical methods often based on protein or DNA measurements are utilized to identify fish and meat species. Although many strategies have been adopted to assure the authenticity of fish and meat and meat a fish products, such as the protected designation of origin, protected geographical indication, certificate of specific characteristics, and so on, the coverage is too small, and it is unrealistic to certify all meat products for protection from adulteration. Therefore, effective supervision is very important for ensuring the suitable development of the meat industry, and rapid, effective, accurate, and reliable detection technologies are fundamental technical support for this goal. Recently, several methods, including DNA analysis, protein analysis, and fat-based analysis, have been effectively employed for the identification of meat and fish species.

The article reveals some aspects of the influence of the duration of heat treatment and different types of functional mixtures on the functional and technological characteristics of broiler meat products at low temperature processing under the condition of target fermentation. Broiler meat has several advantages for use as a raw material in the production of Sous-Vide products. These advantages include high moisture content, high organoleptic characteristics, and relatively low cost of this raw material. However, there are a few disadvantages that complicate the processing of broiler chicken meat by Sous Vide technology. These include the high amount of moisture released during production and the low moisture-binding capacity of some batches of raw materials (often associated with excessive moisture or disruption of autolytic processes in broiler chickens). To achieve the desired consistency and high organoleptic characteristics, enzyme preparations are widely used in the meat processing industry. To eliminate these shortcomings, it is proposed to use functional mixtures, which are introduced into the raw meat by injection, as well as the use of targeted fermentation. During the experiment, 2 formulations of broiler chicken meat products were developed, which in turn were treated in two heat treatment regimens and treated with the enzyme transglutaminase. In the first batch of samples, an injection of 15% solution of a functional mixture based on citrates was used, while in the second batch - a similar level of injection of a mixture based on phosphates. Heat treatment was performed after pre-application in bags and vacuum at 62 ℃ for 120 and 140 min for different groups of samples. In all samples, the yield of the finished product, the relative weight of the separated moisture (broth) in the package, the values of pH, water holding and moisture-retaining capacities, as well as the total moisture content in the finished product were determined. According to the obtained results, the optimal is samples with the use of phosphates, and 120 minutes the duration treatment is 120 minutes.

PurposeBuying companies in the food industry increasingly recognize the need to cultivate relationships with their suppliers. Social capital and power are important to understand buyer–supplier relationships. Maintaining these relationships appears highly dependent on the degree of information sharing.Design/methodology/approachThe study investigates how power and social capital dimensions are related to information sharing. A survey of first-tier suppliers in the Dutch meat processing industry was carried out. The data from 82 suppliers was analyzed using partial least squares.FindingsIt appears that expert power contributes to the cognitive and structural social capital. In contrast, coercive power showed no influence at all. Cognitive and structural social capital dimensions have a direct link to relational social capital, which significantly improves buyer–supplier information sharing in the food industry.Practical implicationsBuying companies can encourage supplier information sharing by building up their own expertise and cultivating social relationships. They should refrain from strong-handed practices.Originality/valueCompanies in the food and food processing industry are dependent on effective information exchange for their very survival. This study investigates the role of power and social capital in making such exchange possible and sustainable.

In the meat industry, hydrocolloids and phosphates are used to improve the quality attributes of meat products. However, latest research results revealed that the usage of exopolysaccharide (EPS)-forming lactic acid bacteria (LAB), which are able to produce EPS in situ during processing could be an interesting alternative. The current review aims to give a better understanding of bacterial EPS production in food matrices with a special focus on meat products. This includes an introduction to microbial EPS production (homopolysaccharides as well as heteropolysaccharides) and an overview of parameters affecting EPS formation and yield depending on LAB used. This is followed by a summary of methods to detect and characterize EPS to facilitate a rational selection of starter cultures and fermentation conditions based on desired structure-function relationships in different food matrices. The mechanism of action of in situ generated EPS is then highlighted with an emphasis on different meat products. In the process, this review also highlights food additives currently used in meat production that could in the future be replaced by in situ EPS-forming LAB. ispartof: COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY vol:19 issue:6 pages:2932-2954 ispartof: location:United States status: published

Bacterial contamination on the outer grained hide of cattle serves as a significant challenge to the meat and hide processing plants regarding food safety. Cattle serves as a host to several bacteria including pathogens, which may become firmly lodged on a cattle’s hide during their lifespan and can facilitate cross contamination of the underlying meat and meat processing equipment in a slaughterhouse. In this study, the efficacy of sodium dichloroisocyanurate dehydrate (SDCIC), which belongs to N-halamine group of compounds is evaluated on inhibition of the natural-borne bacteria from the haired surface of cattle hide. Spray-washing with 0.25%, 0.50% and 0.75% aqueous SDCIC solutions reduced total aerobic bacteria on hide surface by 1.6 and 2.37 and 3.57 log CFU/50 cm2 respectively in 5 min. Similarly, in comparison with water spray, a 5 min treatment with 0.25, 0.50 and 0.75% SDCIC resulted in a reduction of Enterobacteriaceae (ENT) and related gram-negative bacilli (gnEB) counts by 1.2, 2.22 and 4.22 log CFU/50 cm2 respectively. The highest reduction of E.coli recovery of 1.48 log CFU/50 cm2 was obtained with a spray treatment of 0.75% SDCIC in 1 minute. Likewise, 0.75% SDCIC spray treatment resulted in 2.5 and 3.65 log CFU/50 cm2 reduction of Salmonella in 1 and 5 min, respectively in comparison to their respective controls. Leather from treated hides was tested to evaluate the effects of N-halamine solutions on structural, mechanical and subjective properties of produced leather in which no major detrimental impacts were found.

The aim of the work was to establish the frequency of detection of mold of raw smoked sausages and to evaluate the use of synthetic protective shrinks, which provide long-term storage of sausages. Nine batches (310 samples) of raw smoked sausages were examined, 487 crops were made on special media, 154 samples of sausages were examined according to physical and chemical parameters. We determined that an intensive contamination of their surface with micellar fungi during the sale of raw smoked sausages in retail trade is taking place: Penicillium (62.9%), Aspergillus (18.2%), Mucor (10.7%), Cladosprium (4.5%). We found that on the 5th day of their sale 4.57±1.64% of experimental sausage bulks are contaminated with micellar fungi but more massive and intensive development of micromycelia was found on the 20th day of sale (29.32±8.16% of cases). We proved that the use of protective coating/srink “Optiglianets” (Lofink Group, Ukraine), “CoatStar 110” (OJSC “Upakprint”, Russia), “Polisved1” (OJSC “Omega”, Russia), “Antibak Tauchmassa” (Company “Swed Holding”, Russia) and “Tauchmasse KP-15”, Italy), delayed up to 20 days the development of micellar fungi on the surface of prototypes of smoked sausages. We applied them in a thin layer (0.06-0.10 mm depending on the applied means) on the surface of sausage bulks and dried in drying chambers at temperature of 15.0±2.0 °C and 45 minutes exposure at a relative humidity of 70%. The weight loss of raw smoked sausages was the lowest with the use of protective coating “Optiglyanets” (Lofink Group, Ukraine) and “Polisved-1” (OJSC “Omega”, Russia). It was 14.5±0.8% and equal to 60% reduction compared to other protective coatings/shrinks implementation. 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Quality of emulsion type poultry meat products is a challenge facing the meat industry owing to the absence of Egyptian limits that regulate the usage of mechanically deboned poultry meat in the meat industry, in addition to the different types of meat additives added during processing. which might have a bad health impact on consumers. A total of 48 different commercial poultry emulsion type luncheon samples were collected from Cairo and Ismailia Provinces (Egypt) factories and markets, and examined for their technological criteria, sensory evaluation; proximate chemical analysis and histological examination. For sensory evaluation, the mean value of for appearance, color, flavor, juiciness, binding and overall acceptability were 5.4±0.25, 5.8±0.24, 6.6±0.21, 6.5 ±0.14, 5.9±0.19 and 6.1±0.19 respectively. For technological criteria; the discoloration characteristics of examined samples of fading, starchy, green core, and shrinkage were 91.6%, 50%, 0%, and 8.3% respectively. Good binding and Bad binding were 50% and 50%. Jelly pockets, Air pockets, Fat cap, and separated were 20.8%, 100%,0%, and 0% respectively. The mean values for chemical Prosperities as moisture % in the examined samples was 66.79 ±0.43, while that for protein, fat, ash, lean meat, nitrogen and calcium content was 12.9±0.22, 17.5±0.46, 3.28±0.29, 61.96±1.8, 2.35±0.04 and 2094.00±240.28 respectively. The histological examination showed great variability between the samples of different origins in the muscle fiber, fat content, cartilage, bone, and skin content.

PurposeThe objective of the study was to assess consumer exposure to warmed-over flavour, their eating habits with respect to pre-cooked stored meats, awareness of antioxidants and attitudes towards the use of natural antioxidants as preservatives in meat and meat products.Design/methodology/approachA total of 238 Check-All-That-Apply (CATA) design questionnaires were used to gather information from the University of Fort Hare community in the Eastern Cape province of South Africa.FindingsThe majority of the respondents had been exposed to warmed-over flavour before. More than half of the respondents did not know about antioxidants. Respondents were in support of the use of natural antioxidants in meat and meat products.Research limitations/implicationsThe study mainly captured consumer habits based on living arrangements. Age influence could not be extrapolated due to the nature of the population, which was being studied. The population was limited to the University community, which is mainly made up of not so widely spread age groups and more or less similar levels of education. As a result, the findings and conclusions may not be a true reflection of the general public consumers in terms of age, level of education and employment status.Originality/valueThis research presents an original insight into consumer habits concerning the purchasing and storage of pre-cooked meat and meat products. The study revealed that most consumers nowadays prefer ready-to-eat or pre-cooked meat and meat products due to convenience. The warmed-over flavour is common in pre-cooked meats. The findings suggests that the meat industry has to improve the shelf-life of pre-cooked foods such that warmed-over flavour development is delayed to fit into the current consumer habits. In recent years there has been a growing interest in the use of natural antioxidants to improve shelf-life of muscle foods. However, there is a dearth of information on consumer attitudes towards the use of natural antioxidants as preservatives. This study reveals that consumers are willing to try products formulated using natural antioxidants.

Background Antioxidants and antimicrobials are increasingly becoming important additives in meat industry to extent shelf life and increase acceptability. Oxidative changes and microbiological activities have negative effects on the sensory, stability, nutritional and acceptability properties of the meat products. Mediterranean plant extracts and essential oils (EOs) have been studied as potential natural antimicrobials and antioxidant activity added to meat and meat products, as well as medicinal and functional properties. In recent years, plant derivatives are fairly becoming important in minimal processed products because of the high phenolic content, what allows to enhance the color stability and decrease off-flavors. Scope and approach This review provides recent information of phytochemical components, advanced extraction technologies and phenolic composition of Mediterranean plant extracts and EOs, as well as their antioxidant, antimicrobial, health promotion and sensory properties as natural preservatives in meat and meat products. Key findings and conclusions: A high concentration of phenolic and flavonoid content was observed in microwave assisted extraction (MAE), followed by ultrasound assisted extraction (UAE), conventional solvent extraction, and CO2 extraction. Phenolic acids and terpenoids were usually among the major components of common Mediterranean plant extracts and essential oils, respectively. Rosemary, garlic, lavender, leek, olive leaf, onion, oregano, pepper, peppermint, sage and Satureja montana are most important aromatic Mediterranean plant species used in meat industry and have exhibited similar or better antimicrobial and antioxidant properties than chemical preservatives. Flavonoids have beneficial effects on human and have been linked with the prevention of atherosclerosis, hypertension, dementia, diabetes and thrombosis.

In the field of agricultural and food processing, high power ultrasound (HPUS) is recognized as a green, physical and non-thermal technology in improving the safety and quality of foods. The functional properties of food proteins are responsible for texture, yield and organoleptic of food products which are the theoretical basis for food processing optimizing. HPUS treatment could provide the possibility for creating novel functional properties of new foods with desirable properties due to the modification of protein structure. In this article, an overview of the previous studies and recent progress of the relationship between structure modification and functional properties of food proteins using the HPUS technique were presented. The research results revealed that HPUS could significantly affect the conformation and structure of protein due to the cavitation effect resulting in the improvement of solubility, interfacial, viscosity, gelation and flavor binding properties of proteins. During meat processing, HPUS can modify the structure and thereby improve the functional properties of myofibrillar protein (MP), leading to the quality enhancement, low fat and/or salt products development and the shelf life extending. In view of this review, the recent findings of applications of HPUS in the production of meat products based on the modification of MP including curing, freezing/thawing and thermal processing have been summarized. Finally, the future considerations were presented in order to facilitate the progress of HPUS in meat industry and provided the suggestions based on the advanced protein modification by HPUS for the commercial utilization of HPUS in producing the innovative meat products.

The meat industry produces a lot of waste, which contains large amounts of the organics and nutrients. Animal by-products have potential for biomaterial extraction. The use of bio-material, which can be obtained from plant sources, microorganisms, agricultural, and animal waste are nowadays favored because of their compatible, cost-effective, and low-risk for removal of pollutants, compared to chemical and physical methods. In this study, a biopolymer from meat by-product extracted by methanol-chloroform and characterized by FTIR, GC–MS, HPLC, and SDS-PAGE analyzes. The extracted biomaterial was useful in water desalination by calcium carbonate precipitation and heavy metals removal, which was confirmed by FTIR and ICP analyzes. The extracted biomaterial also has antibacterial properties against Pseudomonas aeruginosa and Escherichia coli without toxicity to human blood cells, which can make it useful in industries such as its application in fish ponds.